由:connerlyzhang
避免在TaskTracker和DataNode的机器上执行RAID和LVM操作,这通常会降低性能。 你指的是不用lvm吗? hadoop不支持裸设备的吧,不用lvm,那该用什么呢?
View Article由:Hadoop平台优化综述(转) » lmm
[...] http://dongxicheng.org/mapreduce/hadoop-optimization-0/ Posted by 晓嘉 at 12:10 Tagged with: Hadoop, 优化 if (typeof DUOSHUO !== [...]
View Article由:www6v
(1) {map/reduce}.tasks.maximum 同时运行在TaskTracker上的最大map/reducetask数,一般设为(core_per_node)/2~2*(cores_per_node). 请问core_per_node是指cpu的个数吗?
View Article
More Pages to Explore .....